Research Seminars

In our weekly research seminars, researchers, Ph.D. students, and students of the chair of Prof. Dr. Christoph Meinel present their bachelor or master theses, give reports about their project work, or present the latest research results in their PhD projects. Besides, important journal or conference papers about related research work are presented as well as presentations which will be given at international conferences are rehearsed.

Date and Room

Tuesdays 15:15 in G1-E.15/16

Winter/Summer Semester 2024/2025

The presentations are recorded with tele-TASK and available to HPI members (who are logged in with their HPI account) here.

17 Sep. 2024

Johannes Klemm — Master Defense:

Analysis of actual usable and applicable security practices through online IT-security education

Tim-Lorenz Depping — Master Defense:

Route to Privacy: Walking Route Disclosures and Their Implications

Winter/Summer Semester 2023/2024

The presentations are recorded with tele-TASK and available to HPI members (who are logged in with their HPI account) here.


13 Aug. 2024	Jonas Schmitz — Master Defense: Towards Data-driven Detection for Command and Control Traffic
11 Jun. 2024	Selina Reinhard, Sebastian Serth, Thomas Staubitz, Christoph Meinel — Conference Paper: From One-Size-Fits-All to Individualization: Redefining MOOCs through Flexible Learning Paths Lars Prepens — Mid-term Presentation Fuzzing Apache: Improving code coverage and bug detection
23 Apr. 2024	Tim-Lorenz Depping — Mid-term Presentation: Route to Privacy: Mining Movement Patterns Based on Walking Routes Disclosed Through the HealthKit Framework
26 Mar. 2024	Md Hasan Shahriar — Master Defense: Detecting Explicit Personal Identifying Information (PII) in Unstructured Text using Deep Learning Sebastian Serth — Conference Presentation: As Secure as Dangerous Can Be: Considerations for Secure Auto-Graders in the Context of MOOCs
06 Feb. 2024	Daniel Koehler – Conference paper: How Users Investigate Phishing Emails that Lack Traditional Phishing Cues Manisha Manaswini – Master Defense: From Lab to Life: Assessing Physiological Indicators of Creativity and Flow with Wearable EEG Technology in Real-life Settings
30 Jan 2024	Selina Reinhard – Master Defense: Designing and Evaluating Flexible Learning Paths in MOOCs Kira Grammel – Master Defense: Remote Pair Programming: Collaboratively Solving Exercises in MOOCs
16 Jan 2024	Michael Büßemeyer - Master Thesis Defense: Examining the Effects of Instructional Style on Phishing Email Detection Behavior Jonas Schmitz - Mid-term Presentation: Data Driven Approach to Command and Control Detection
19 Dec 2023	Jona Otholt – Conference paper presentation: Guided Cluster Aggregation: A Hierarchical Approach to Generalized Category Discovery Nianhui Guo – Journal paper presentation: Towards Optimization-Friendly Binary Neural Network
24 Oct 2023	Eric Klieme – Conference paper presentation: All about that BASE: Modeling Biometric Authentication Systems and their Evaluations to enable a more efficient Exchange of Research Results Eric Klieme – Conference paper presentation: Push It Real Good: Towards Behavioral Access Control using the Door Handle Push-Down-Phase Only Hendrik Steinbeck: Millions of Views, But Does It Promote Learning?

Summer Semester 2023

The presentations are recorded with tele-TASK and available to HPI members (who are logged in with their HPI account) here.


5 Sep 2023	Viktoria Michael, Jonas Schulze, Sebastian Staib – Master Project Final Presentation: Predicting Extreme Weather Events Furkan Simsek – Master Defense: Expectation-Maximization for Imbalanced Generalized Category Discovery
29 Aug 2023	Kira Grammel – Intermediate Presentation: Remote Pair Programming: Collaboratively Solving Exercises in MOOCs Selina Reinhard – Intermediate Presentation: Designing and Evaluating Flexible Learning Paths in MOOCs Till Nowakowski – Master Defense: Predicting Privilege Necessity to Mitigate Lateral Movement Attacks in an Active Directory
08 Aug 2023	Manisha Manaswini – Mid-term Presentation: Unravelling the Neural Threads of Creative Flow: Analysis of EEG Patterns Using Consumer-Grade Technology Daniel Koehler – Conference Paper: The ”How” Matters: Evaluating different Video Types for Cybersecurity MOOCs
01 Aug 2023	Sebastian Serth – Conference Paper: On the Feasibility of Serverless Functions in the Context of Auto-Graders Vincent Rahns – Master Defense: Behavioral Authentication based on door interactio
25 Jul 2023	Jonas Schulze, Sebastian Staib, Viktoria Michael – Mid-term presentation: Predicting Extreme Weather Events
13 Jun 2023	Furkan Simsek – Mid-term presentation: LTGCD: Long-tailed Generalized Category Discovery
30 May 2023	Michael Buessemeyer – Intermediate Presentation: Effects of Instructional Style on Phishing Mail Identification Capabilities Ting Hu – Conference paper: Boosting BERT Subnets with Neural Grafting
25 Apr 2023	Alexander Mühle - conference paper: Requirements of a Digital Education Credential System, IEEE Educon 2023 Jonas Krah - Master Thesis Defense (Supervisor: PD Dr. Haojin Yang): Accelerating Monocular Depth Estimation Using Binary Neural Networks Adnan Kadic, Lars Yavor and Til Bussmann - Master's project Final presentation Towards Automated Red Team Exercising
21 Mar 2023	Katja Assaf- conference paper: Prison Break: From Proprietary Data Sources To SSI Verifiable Credentials
21 Feb 2023	Till Nowakowski– Intermediate Presentation: Detection of overprivileged users and risk prioritization in an Active Directory in the context of lateral movement
14 Feb 2023	Kim-Pascal Borchart– Master Thesis Defense: Automatic and Domain-Agnostic Creativity Measurements on Digital Human Traces Vincent Rahn– Intermediate Presentation: Behavioral Authentication based on door interaction
24 Jan 2023	Adrian Buchwald Automated Annotation Detection and Removal

Summer Semester 2022

The presentations are recorded with tele-TASK and available to HPI members (who are logged in with their HPI account) here.


06 Dec 2022	Ziyun Li - Conference paper: A closer look at novel class discovery from the labeled set Weixing Wang - Master mid-term presentation: Network Intrusion Detection using pre-trained tabular representation models
29 Nov 2022	Lukas Ehrmann – Master Thesis Defense: Intrusion Detection in Computer Networks based on a Graph Neural Network Mehryar Majd Conference Paper Presentation: A Comprehensive Review of Anomaly Detection in Web Logs Rakibul Islam – Master Thesis Defense: Outlier Detection to Enable Privacy Perserving High-Dimensional Data Analysis Jonas Krah Master Thesis Intermediate Presentation : Accelerating Monocular Depth Estimation using Binary Neural Networks
11 Nov 2022	Ali Alhosseini Predicting User engagements using Graph Neural Networks on Online Social Networks Ziyun Li Not All Knowledge Is Created Equal: Mutual Distillation of Confident Knowledge
25 Oct 2022	Leonard Marschke - Master Thesis Defence On the feasibility of integrating OpenID Connect into open-source desktop environments
09 Sep 2022	Marvin Mirtschin – Master Thesis Defense: Gaitomator - Building a Groundwork for inertial sensor-based Gait Recognition
23 Aug 2022	Brian Pfitzmann, Furkan Simsek - Final Presentation Developing Language Identification for Art-Historical Documents Daniel Koehler Integrating Podcasts into MOOCs: Comparing Effects of Audio- and Video-Based Education for Secondary Content
08 Aug 2022	Maximilian Franz, Florian Müller, Hoang An Nguyen, Tilman Schütze, Stefan Spangenberg- bachelor project: CASPER - Lernvideos finden leicht gemacht Leonard Marschke - Intermidate Master’s presentation Modern Authentication and Authorization on Linux Desktops
19 Jul 2022	Lukas Ehrmann Network Intrusion Detection Systems based on Graph Neural Network
	Eric Ziegler Zero-Shot Token Classification with Question Answering Transformer Models
21 Jun 2022	Jonas Schmitz, Till Nowakowski, Lieven Leue, Mario Freund Vulnerability Database for Cyber Threat Intelligence
	Till Nowakowski, Brian Pfitzmann, Furkan Simsek Developing Language Identification for Art-Historical Documents
	Kaja Schmidt: Introductory presentation
04 May 2022	Holly Ambrozic McKee Automatic Detection of the Flow Mental State in the Context of Creative Collaboration
19 April 2022	Marvin Mirtschin Reproducibility of gait authentication algorithms
	Wenzel Pünter Towards Mining Actionable Threat Intelligence from Process Behavior Graphs
	Tobias Bredow Synthesis of annotated medical images using style based generators

Summer Semester 2019

The presentations are recorded with tele-TASK and available to HPI members (who are logged in with their HPI account) here.

02 Apr 2019	Tobias Rohloff Utilizing Web Analytics in the Context of Learning Analytics for Large-Scale Online Learning
	Max Bothe From MOOCs to Micro Learning Activities
	Thomas Staubitz MOOCs in Secondary Education - Experiments and Observations from German Classrooms
09 Apr 2019	Felix Seidel Deep En-Route Filtering of Constrained Application Protocol (CoAP) Messages on 6LoWPAN Border Routers
	Michael Meinig Holistic Strategy-Based Threat Model for Organizations & Rough Logs - A Data Reduction Approach for Log Files
16 Apr 2019	Mana Taheri Towards Culturally Inclusive MOOCs: A Design-Based Approach
	Karen von Schmieden Skill Confidence Ratings in a MOOC: Examining the Link Between Skill Confidence and Learner Development
	Dr. Adebayo Omotosho Introductory Presentation
30 Apr 2019	Dominic Sauer Personalized Learning Objectives in MOOCs (Master Thesis Defense)
07 May 2019/ 14 May 2019

Winter Semester 2018/2019

The presentations are recorded with tele-TASK and available to HPI members (who are logged in with their HPI account) here.

16 Oct 2018	Nuhad Shaabani Improving the Efficiency of Inclusion Dependency Detection
	Ali Alhosseini Introductory Presentation
23 Oct 2018	Kennedy Torkura CSBAuditor - Proactive Security Risk Analysis for Cloud Storage Broker Systems
13 Nov 2018	Mina Rezaei Learning Imbalance Medical Imaging
	Johannes Sianipar Virtual Machine Integrity Verification in Crowd-Resourcing Virtual Laboratory
	Master Project Self-Sovereign Identity Identity Management with Blockchain Technology
	Ting Hu Introductory Presentation
20 Nov 2018	Dominic Sauer Personalized Learning Objectives in MOOCs (Master Intro)
	Christian Bartz LoANs: Weakly Supervised Object Detection with Localizer Assessor Networks
	Mina Rezaei Generative Adversarial Framework for Learning Multiple Clinical Tasks
27 Nov 2018	Mina Rezaei Conditional Generative Refinement GAN for Learning Unbalanced Medical Imaging
	Jonathan Sauder Pseudo-Ground-Truth Training for Adversarial Text Generation with Reinforcement Learning
04 Dec 2018	Kennedy Torkura A Cyber Risk Based Moving Target Defense Mechanism for Microservice Architectures
	Johannes Sianipar Moving Sensitive Data Against Live Memory Dumping, Spectre and MeltDown Attacks
11 Dec 2018	Jonas Keutel Towards Shared Learning Contents - and how to make teachers want to contribute
	Michael Janke Digitale Medien im Klassenzimmer
18 Dec 2018	Muhammad Ihsan Sukmana Unified Cloud Access Control Model for Cloud Storage Broker
	Marvin Bornstein Evaluation of Quantized Deep Neural Networks
	Georg Berecz A Web-Based Planning Tool for German School Teachers (Master Defense)
15 Jan 2019	Mina Rezaei Conditional Generative Refinement Adversarial Networks for Learning Imbalanced Medical Image Semantic Segmentation
	Bachelor Project Behavioral Authentication Access Management Platform
19 Feb 2019	Dr. Julia von Thienen Estimator socialization in design thinking: The dynamic process of learning how to judge creative work
	Michael Meinig Finding Classification Zone Violations with Anonymized Message Flow Analysis
26 Feb 2019	Balthasar Martin Evaluating the Security of Cloud-based Remote Access for the Internet of Things (Master Thesis Defense)
	Master Project Self-sovereign Identity Final Presentation
	Paul Arndt Supporting interneal differentiation with the HPI Schul-Cloud (Master Thesis Mid-Term)
12 Mar 2019	Andreas Grüner A Comparative Analysis of Trust Requirements in Decentralized Identity Management
	Sebastian Serth Individual Worksheets with Interactive Programming Exercises within the Schul-Cloud (Master Thesis Mid Presentation)
	Markus Dücker Augmenting Ideation Processes in Digital Whiteboards Through Crowdsourced Contributions (Master Thesis Intro)
19 Mar 2019	Muhammad Ihsan Sukmana Supporting Internet-based Location for Location-based Access Control in Enterprise Cloud Storage Solution
	Benedikt Bock Link Layer Key Revocation and Rekeying for the Adaptive Key Establishment Scheme
26 Mar 2019	Jan Renz Evaluating project based education for IT-system engineering
	Marvin Bornstein Evaluation of Quantized Deep Neural Networks
	Torben Meyer Handwriting Detection/Recognition from Art-Historical Documents

Summer Semester 2018

The presentations are recorded with tele-TASK and available to HPI members (who are logged in with their HPI account) here.

17 April 2018	Anja Perlich Evaluation of the Technology Acceptance of a Collaborative Documentation System for Addiction Therapists and Clients
	Kennedy Torkura A Threat Modelling Approach for Cloud Storage Brokerage and File Sharing Systems
	Sören Oldag Utilizing Web Analytics in the Context of Learning Analytics (Master Thesis Intro)
	Henriette Dinger Development of a Framework for User-oriented Improvements on MOOC Platforms
	Florian Morel Introductory Presentation
08 May 2018	Nicco Kunzmann Wie können Schüler zur Schul-Cloud beitragen?
	Daniel Werner Key Revocation and Rekeying for the Adaptive Key Establishment Scheme
15 May 2018	Christiane Hagedorn Exploring Possibilities to Partially Transform Simulation Exercises into Interactive Games on OpenWHO.org
	Haofang Lu Introductory Presentation
	Hannes Schurig Introductory Presentation
22 May 2018	Martin Fritzsche An Open Source Framework for Binarized and Quantized Neural Networks (Master Thesis Defense)
	Master Project Nature Language Generation Using Generative Adversarial Networks (Final Presentation)
	Jonas Keutel Lesson Planning in the Schul-Cloud
12 June 2018	Mina Rezaei Automatic Cardiac MRI Segmentation via Context-aware Recurrent Generative Adversarial Neural Network
	Ra'ad Bin Tareaf ASEDS: Towards Automatic Social Emotion Detection System Using Facebook Reactions
	Konstantin Kaiser Introductory Presentation
19 June 2018	Balthasar Martin Security in Generic Application Scenario of Smart Devices (Master Thesis Intro)
	Bachelor Project BP2017M1 A Big Security Data Analytical Framework: Prototype Presentation
17 July 2018	Dr. Julia von Thienen Innovation Modelling in Engineering and Scholastic Philosophy
	Andreas Grüner A Quantifiable Trust Model for Blockchain-based Identity Management
	Julian Taraz Introductory Presentation
24 July 2018	Eric Klieme Beware of SMOMBIES: User verification based on Activities while Walking
31 July 2018	Kennedy Torkura CAVAS: Neutralizing Application and Container Security Vulnerabilities in the Cloud Native Era
	Dr. Baale Adebisi Abimbola Introductory Presentation
07 Aug 2018	David Jaeger Accelerating Event Processing for Security Analytics on a Distributed In-Memory Platform
14 Aug 2018	Michael Janke Digital Media in the Classroom (Master Thesis Intro)
	Georg Berecz Competence Based Annual Education Planning (Master Thesis Intro)
21 Aug 2018	Jan Renz OpenWHO: Integrating Online Knowledge Transfer into Health Emergency Response
	Tobias Rohloff Strukturelle Unterstützung von kollaborativer Learning Analytics Forschung
28 Aug 2018	Torben Meyer End-to-End Handwriting Recognition on Document Notes (Master Thesis Intro)
	Anja Perlich Cooperative Note-Taking in Psychotherapy Sessions: An Evaluation of the Therapist’s User Experience with Tele-Board MED
	Tobias Rohloff Towards Personalized Learning Objectives in MOOCs
	Jan Renz Datenschutzkonforme Learning Analytics bei Einbindung externer Materialen in Lernportale im schulischen Umfeld
11 Sept 2018	Tom Staubitz Team-Based Assignments in MOOCs – User Feedback
	Tom Staubitz Collaborative Learning in MOOCs - Approaches and Experiments
18 Sept 2018	Tobias Rohloff Towards a Better Understanding of Mobile Learning in MOOCs
	Sören Oldag Utilizing Web Analytics in the Context of Learning Analytics (Master Defense)
	Henriette Dinger Developing User-oriented Improvements on the HPI MOOC Platforms (Master Defense)

Winter Semester 2017/2018

The presentations are recorded with tele-TASK and available to HPI members (who are logged in with their HPI account) here.

10 Oct 2017	Ihsan Sukmana Redesign CloudRAID for Flexible and Secure Enterprise File Sharing over Public Cloud Storage
	Aragats Amirkhanyan The Framework for Spatiotemporal Sequential Rule Mining: Crime Data Case Study
	Pejman Najafi Guilt-by-Association: Detecting Malicious Entities via Graph Mining
	Felix Wolff Denial-of-Sleep Resilient Opportunistic Routing in 802.15.4 Networks (Master thesis mid-thesis presentation)
17 Oct 2017	Tobias Straub Kontextbasierte Visualisierung von Medieninhalten für die Schul-Cloud
	Konrad-Felix Krentz More Lightweight, yet Stronger 802.15.4 Security through an Intra-Layer Optimization
	Tobias Rohloff Supporting Multi-Device E-Learning Patterns with Second Screen Mobile Applications
	Daniel Werner Key Revocation for the Adaptive Key Establishment Scheme (AKES)
24 Oct 2017	Malte Swart Automatic Packaging and Updates of Dependencies for Package-based Continuous Integration (Master thesis defense)
	Jan Graichen Application Performance Monitoring on Distributed Web Applications (Master thesis defense)
	Kennedy Torkura Leveraging Cloud Native Design Patterns for Security-as-a-Service Applications
07 Nov 2017	Aragats Amirkhanyan Density and Intensity-based Spatiotemporal Clustering with Fixed Distance and Time Radius
	Johannes Jasper Authorship Attribution using deep Stylometric Fingerprints (master thesis intro)
	Markus Petrykowski Digital Collaboration with virtual reality (master thesis intro)
14 Nov 2017	Master Project Behavioral Authentication Intro Presentation
21 Nov 2017	Tom Staubitz Towards a Repository for Open Auto-Gradable Programming Exercises
	Vivien Malyska Projekt Schul-Cloud: Anwendungsszenarien, Herausforderungen und Potenziale digitaler Bildung an Schulen
28 Nov 2017	Kennedy Torkura Integrating Continuous Security Assessments in Microservices and Cloud Native Applications
	Johannes Sianipar Signed URL for an Isolated Web Server in a Virtual Laboratory
	Johannes Sianipar Team Placement in Crowd-Resourcing Virtual Laboratory for IT Security e-learning
12 Dec 2017	Ihsan Sukmana Unified Logging System for Monitoring Multiple Cloud Storage providers in Cloud Storage Broker
	Michael Meinig Securing the Flow - Data Flow Analysis with Operational Node Structures
09 Jan 2018	Markus Petrykowski Digital Collaboration with Virtual Reality (master thesis defense)
	Johannes Jasper Authorship Attribution using Stylometric Fingerprints (master thesis defense)
16 Jan 2018	Prof. Matthew Adigun Mission-specific Small Data Driven Innovation for Business Intelligence-A Proposal
	Henning Agt-Rickauer DoMoRe - A Recommender System for Domain Modeling
	Jacqueline Thorns Introductory Presentation
06 Feb 2018	Konrad-Felix Krentz Denial-of-Sleep-Resilient Session Key Establishment for 802.15.4 Security: From Adaptive to Responsive
	Bachelor Project CM1 Big Data Architectures & Analytics in Security
	Alexander Mühle Introductory Presentation
06 March 2018	Mina Rezaei Automatic Cardiac MRI Segmentation via Context-aware Recurrent Generative Adversarial Neural Network
	Christian Bartz SEE: Towards Semi-Supervised End-to-End Scene Text Recognition